[27: Strengthening teaching in Europe, New evidence from teachers compiled by Eurydice and CRELL, June 2015 http://ec.europa.eu/dgs/education_culture/repository/education/library/policy/teaching-profession-practices_en.pdf][28: Supporting teachers and school leaders for excellent teaching and learning, part of the COM Communication on School Development and excellent teaching for a great start in life (COM(2017) 248).]
[27: "Strengthening teaching in Europe: New evidence from teachers compiled by Eurydice and CRELL", juni 2015 http://ec.europa.eu/dgs/education_culture/repository/education/library/policy/teaching-profession-practices_en.pdf][28: De ondersteuning van leerkrachten en schoolhoofden voor uitstekend onderwijs en leren, in "Een goede start in het leven dankzij ontwikkeling van scholen en uitstekend onderwijs" (COM(2017) 248).]